Shaft-collar.



PATBNTBD'AUG. 4, 190s.

'I Hun T. HA-LLOWBLL.- SHAFT COLLAR. APPLIOATION vFILE? ABJO, 1908.

PENNSYLVANIA.

appiicaaon med nimh 2o, 190s. seria No. 4e2,s1s.p\

To all whom 'Zt may concern:

Be it known that I, HOWARD T. HALLO- wBLL, a citizen of the UnitedStates, residing in Philadelphia, Pennsylvania, have invented certainImprovements in Shaft-Collars, of which the following` is aspecification. i My invention relates to the construction of an annulus,such as a shaft collar, and the object of my invention is to form ashaft col lar ofa plurality of sheet metal members 5 pressed into thedesired shape and so constructed as to maintain in pro er position a.suitable nut or other support tirough which a set screw is passed fornormally retaining such annulus or collar in place upon a shaft orothersiniilar element.

My invention refers particularly to improvements in a riveted structure,in which an inner wall or sleeve for engagement with the shaft isprovided.

l Other features of my invention will be t0 the accompanying drawings,in which:

Figure 1, is a perspective view of a complete shaft collar made inaccordance with my invention; Fig. 2, is a perspective view showt ing insection the several members comprising the collar shown in Fig. 1; Fig,3, is a sectional view of the collar shown in Fig. 1; aoFig. 4, is asectional view on the line (1 -a, Fig. 3 Figs. 5 to 9, both inclusive,are views illustrating modified forms of collais within the scope of myinvention.

I y present invention comprisesl certain improvements in the forni ofshaft collars 1 i shown in Patent No. 846,088, dated March 5,

All of the structures forming the subject of my invention com )risesections or blanks of 4o sheet metal pressed into shape to form a hollowmember with a shaft engaging sleeve; so dis osed as to provide mutualconnection an( support, and having portions of the g metal comprisingthe same displaced so as to confine in pi'opei' relative position asuitable nut for the set screw employed with such co1lais.`\` In theStructui'e shown in Figs. 1, 2, 3 and 4, the. collar comprises annularmembers` 1, 1,

5o of similar size and contour; being substantially U-shape incross-section, and having peripheral walls 3 and 4, and sidewalls 5integral therewith; which members have been reviously formed from sheetmetal blanks liy inea-ns usually employed for such pur- SHAFT-COLLAR.

Specification of Letters Patent.

`\ l pointed out hereinafter, reference being had Patent'e'dlaug. 4,190s.

pose. T hesc sections are provided with vhalf p round registeringnotches 6 in their inner and outer peripheral walls 3 and 4, providingfor the passage of a set screw 7 the outer notches being counterbore'dat 8, and said-set screw is arranged to engage a nut or other threadedsupport 9 which is mounted within the hol-A low space formed by thesections; being confined b v suitable means in proper .position relativeto the registering notches of the sections forining the' collar.

` To maintain the sections 1, 1, of the form of collar shown in Figs. 1,2, 3 and 4, in the proper position with relation to each other, Iprovide an annular securing sleeve 10 disposed against the inner side ofthe outer eriplieral wall of said sections, such sleeve eing aperturedand counterbored at 8 for the passage of the set screw 7, and in orderto confine the sections 1, 1, in )osition by' said sleeve, vthe latteris providedl with spuds 11, adapted -to pass through apertures 12 intheside walls 5 of tliesections 1 and be riveted thereto in the mannerclearly shown in the drawings, such action binding the sections togetherand holding them against displace'- ment. If desired, the sleeve 10 maybe brazed, electrically welded or otherwise permanentlysecured to thesections 1, 1. Inl the piesent instances, thesections 1, 1, have theirsharp corners rounded or beveled. This securing sleeve l0 is preferablyformed into the necessary sha e from a Ilat strip; the meetin edges ofwhic i may' or may not bev secure by 4brazing' or other desirable means.Instead of employing the annular band shown in Fig. 2, and in thesectional views, Figs. '2 and 4, I may use small plates 13 asillustrated in Fig. 9, for the purpose of securing the sections of thecollar together, or rivets of the ordinary type may e emloyed. Insteadof employing the annular and within the structure, as illustrated inFigs. 3 and 1, it may embrace the inner peripheral wall. Instead ofspuds passing entirely through the side Walls and riveted on the outsideof the same, the may only touch saidl side walls, and the er ges of theinner band may be electrically welded by means of slight raised contactpoints or projections similar to spuds but of smaller proportions.

The nut or sup ort, through wiich the set screw passes, isllaid ad jacont the sections forming the collar 'during the process of finallysecuring the same together, and to retain this nut in place I mayprovide vari-k ous means, such for instance as displacing the metal otthe outer webs of t-lie sections ,forming the shell by suitable means,as

' depression 15 formed in t-lie inner peripheral wall adjacent theaperture for the passage of the set screw, as indicated in the drawings.By this means a seat is formed' for the nut, and the latter is held{irinly between the saine and the displaced portions of theperipheralwall as indicated.

Figs. 5 to 9, both inclusive, illustrate .other forms of collarsembodying my invention; each of the forms shown iii-said iiofures havinga pair of members of similar shape with a supplemental annular securingband A to which they are riveted.

y In Fig. 5 a pair of members substantially U-slia e in cross sectionare shownhavin@ i o peripheral walls 3b and 4b and side walls 5b;

' \the peripheral walls 3b being disposed some low space.

distance apart.

In Fig. 6, I have shown a structure comprising members having the samecontour, each provided with peripheral walls 3d and 4d, the formelserving as shaft conforming portions which abut at the middle; sidevwalls 5d joining said peripheral walls. The outer peri heralavalls areof substantially the same c aracter as those shown in Fig. 5. In theseseveral forms of shaft collar, the members are secured together by theconnectin(r band 10 having spuds 11 which are riveted through apertures12 in the side Walls.

Fig. 7 shows a'strilcture in which a pair of .U-shaped members havingperipheral walls?)e and 4e and side walls 5e, are arranged to abut eachother and form a hol- They are secured together by the connecting band10, which in this instance lies adjacent the shaft conforming iortionsor peripheral walls 3@ of the ineiners and is secured thereto in thesame inanner as indicated with reference to the other figures. Fig. S isanother sectional View of the structure shown in Fig. 7, indicating themanner of applying a nut and set screw thereto.

In completing the annulus or shaft collar, the members of the saine aieassembled in a suitable manner; the mit being properly positioned andmaintained in such position The displacing of the metal in one of the bymeans of the set screw, or a. suitable pin,

harden the side wall or face of the respective" cellars which comesopposite the work. In

al1 instances the strip used as the inner securing collar or sleeve maybe made of flat metal with its abutting ends brazed or not as de'-sired, and while the out-'er securing sleeves may also be made of suchmetal, the abutting edges of the same are preferablybrazed.

n some forms of the structure shown herein, it may be desirable toprovide oblong nuts with spacing members, such for instance as shown inmy companion case filed herewith.

The apertures in the collar receiving the set screws are preferablycountersunk or bored to accommodate the heads of the set screws so thatthe latter will not project radially beyond the peripheral face of thesame.

I claim:

1. The combination, in a shaft collar, of a pair o1' membeis havingintegral innerand outer peripheral walls joined by side walls, anannular plate dis )osed within said inembers, spuds carried y saidplate,A the side walls of said members being apertured for the receptionof said spuds whereby the said plate is riveted to the members and holdsthe saine together, and a nut carried by said sections.

2. The combination, in a shaft collar, of a )air of members U-shaped iiicross section liaving integral inner and outer peripheral walls joinedby a side wall, securing means disposed within said members, spudscarried by said securing means, the incinbei's being apertured for thereception of said spuds whereby the said securing means is riveted tothesections and holds the saine together, a nut carried by said sections,and a set screw for said nut.

3. The combination, in a shaft collar, of a. pair of members of similarcross section, said niembeis having integral inner and outer peripheralwalls joined by side walls, said side walls being apertured, and meansconined` by said members and having portions positioned in said a)ertures and riveted t0 the side walls where y said members of thecollar are' held together.

L The combination, in a shaft collar, of a pair of membeis of similarcross section, each of said members having integral'inner and -said setscrew.

5. A hollow sheet metal aniiulus or collai` for shafts, comprising apair of members having peripheral walls and side walls, an annular platedisposed within said members and lying against the outer eripheial wallof the same, the side walls o saidvmembers being apertured, and spudscarried by said plate and ositioned in said apertures and rivetedagainstl the outer surface of said side Awalls, a mit disposed in the.hollow spaceA formed by said members, means integral with a m xmber ofthe collar for holding said nut in ilace, and a set screw for said nut.

6. The combination, in a shaft collar, of a pair of-piessed steelmembers of similar contoui with portions disposed at right angles toeach other, a connecting band disposed between said members to whichthey are secuied, a. nut coniined in the annular space formed by saidmembers, a set screw forsaid nut, the outer wall of said collar beingconstructed for the reception of the head of said set screw, and meansintegral with the members of the .collar for holding said nut in place.

7. The combination, in a shaft collar, of a air of members U-shaped incross-section iaving integral inner and outer peripheral walls joined bya side wall, securing means disposed within said members, spuds carriedby said securing means, the members being 895,409 'v i l:3

apertiiied for the reception of said spuds whereby the said securingmeans is riveted to the sections and holds the same together, a nutcarried by said sections, a set screw for said nut, and means integralwith the members of :he collar for holding said nut in place.

S. The combination, in a shaft collar, of a pair of members of similareros; section, said members having integral inner and outer peripheralwalls joined by side walls, said side walls being apertured, means4coniined by said members and having iortions positioned in saidapertures and riveted to the side walls whereby said members of thecollar are held together, a nut disposed in the hollow space formed bysaid members, means integral with the members of the collar for holdingsaid nut in place, and a setI screw for said nut.

9. The combination, in a shaft collar, of a. pair of members of similarcross-section, each ot said members having inte--fral inner and outerperipheral walls joined tby a side wall, said side wall beingapeitui'ed, means confined by said members and having portionspositioned in said apertures and riveted to the side walls whereby saidmembers of the collar are held together, a mit disposed between saidmembers, means integral wit-h said members for securing said nut to thecollar, and a set screw entering said nut, the oiitei' peri )hei-al wallof the collar being countersun i for the reception of the head of saidsetscrew.

In testimony whereof, I have signed my naine'to this specification, inthe presence of two subscribing witnesses.

HOWARD T. HALLOVELL.

Vitnesses:

MURRAY C. BOYER, WM. A. BARR.

